Platform supporting means



Jan. 26, 1943. VP. L. PHILLIPS 2,309,210

PLATFORM S UPPORTING MEANS Filed Aug. 3, 1940 2 Sheets-Sheet l II I!! v ,INVENTOR. 1 PORTER L'. PHILLIPS 'Em mt ATTORNEY.

Jan. 26 1943.

P. L. PHILLIPS PLATFORM SUPPORTING MEANS INVENTOR.

PORTER L... PHILLIPS ATTORNEY.

' Patented Jan. 26, 1943 PLATFORM. SUPPORTING MEANS Porter L. Phillips, Bakersfield, Calif., assignor to MacClatchie Manufacturing Company of California, Compton, Calif., a corporation of California Application August 3, 1940, Serial No. 351,019

1 Claim.

The present invention relates to improvements in platform supporting means for derricks and the like. More particularly it is an improvement of the platform supporting means shown and described in United States Letters Patent 2,094,300, dated September 28, 1937, to Ether S. Moore.

The object of my invention is to provide a platform supporting means by means of which the platform may be raised and lowered in the derrick, said platform supporting means having means for adjusting the plane of the platform in order to compensate for the slope of the derrick legs.

Another object of my invention is to provide a platform supporting means comprising vertical frame members, horizontal frame members, and a platform mounted on said horizontal members so that the platform may be raised and lowered in the derrick, said platform supporting means having means for adjusting the plane of the platform by changing the distance between the horizontal frame members.

My invention has many other objects, advantages, and features, some of which, with the foregoing, will be set forth at length in the following description where I shall outline one form of my invention, which I have selected for illustration in the drawings accompanying and form ing a part of the present specification.

Referring to the drawings:

Figure 1 is a perspective view of a derrick, with parts broken away, showing one installation of my invention.

Figure 2 is a front elevation of the platform supporting means.

Figure 3 is a side elevation of the platform supporting means.

Figure 4 is an enlarged fragmentary view of the means for supporting the horizontal frame members.

Referring to the drawings, the numeral It indicates the legs of a derrick, H the girths, and I2 a ladder.

The platform generally indicated by the numeral I4 is mounted in the derrick by means of a supporting frame generally indicated by the numeral l5 which enables the platform to be moved from one side of the derrick to the other and to be raised and lowered in the derrick.

The supporting frame [5 comprises vertical frame members It and I1 and horizontal frame members 18 and I9 and is so constructed that the platform l4 may be easily both raised and low- Cal ered in the derrick, and moved from one side of the derrick to the other.

As an instance of this arrangement, the frame members l6, l1, l8 and I9 may be tubular in form.

The vertical frame members l6 and I! are each provided with an upper hanger 20 which is adapted to be lowered over a girth II and secured thereto by means of bolts.

Secured to each of the members It and I! is a bracket 2| provided with vertical slots 22 in order to allow for the usual differences in distance between girths in different derricks. The brackets 2| may be secured to the girths I l by any suitable means, for example by means of J-bolts 23 extending through slots 22, thereby securing the frame members l6 and I! to the girths II. The members l6 and H are also provided with a plurality of holes 24.

The ends of the horizontal frame members l8 and I9 are provided with sleeves 25 and 26 which are adapted to be raised over the lower end of the members I6 and H to the desired position, after which they are held in position by inserting bolts 21 through the holes 24 nearest thereto, and then lowering the horizontal members l8 and I!) so that the sleeves 25 rest on the bolt heads 28 and the nuts 29.

Means are also provided for adjusting the plane of the platform in order to compensate for the slope of the derrick legs Ill. As an instance of this arrangement, rods 30 and 3| provided with right-handed threads are connected to rods 32 and 33 respectively, provided with lefthanded threads by means of turnbuckles 34. As the turnbuckles are rotated, the distance between the horizontal frame members is changed, thereby changing the plane of the platform I4.

The platform I4 and the means of mounting said platform on the members I8 and I9 mayboth be similar to the means shown in the abovementioned Moore patent. As shown in said patent, the side members 35 of said platform are connected to the horizontal members l8 by means of sleeves 36 and the lower ends of the braces 31 to the horizontal member l9 by means of sleeves 38. The platform l4 may be provided with an extensible tread 39 slidably carried by the platform and freely movable toward and from the center of the derrick as shown and described in detail in said Moore patent.

Although the several parts may be assembled in the derrick, I prefer to assemble all of the parts together and then raise the platform as a unit to the desired position in the derrick, so

that all that remains to be doiie after the unit is raised to the desired position is to secure the hangers 20 and the J-bolts 23 to the girths II.

From the foregoing description taken in connection with the accompanying drawings, the uses, advantages, and operation of my invention will be readily understood by those skilled in the art to which the invention appertains. While I have described the form of my invention which I now consider to be the best embodiment thereof, I desire to have it understood that the form shown is merely illustrative and that the invention is not to be limited to the details disclosed herein, but is to be accorded the full scope of the appended claim.

I claim: A

In a derrick, vertical frame members adapted to be secured to the derrick, horizontal frame members adapted to be secured to said vertical frame members and to be raised and lowered on said vertical frame members, a platform having sleeves slidable substantially horizontally on said horizontal frame members and adapted to be moved substantially from one side of the derrick to the other, and means for adjusting the plane of said platform by changing the distance between said horizontal frame members.

PORTER L. PHILLIPS. 

